Reply To: If only can get 1 meter would it be a pH or EC and why

[asa.eco]

It depends on your grow style, but the pH is generaly used in more scenarios, although u can go without either;  in soils with a lot of compost/wormcastings, a pH is really not needed, since you are mainly using water only or amendments that dont really change the pH so much since they are organically binded. Composts contain humic and fulvic acids and other humic compunds which work as buffers – neutralising the acids and bases to a soil pH – living/organic soils basicly self restore their pH. No meters needed is the beauty of living soils.